

local key1 = "chat:caht_list:ID_" .. KEYS[1]
local key2 = "chat:chat_content:ID_" .. KEYS[1] .. ":" .. KEYS[2]
local key3 = "chat:chat_object:ID_" .. KEYS[1] .. ":" .. KEYS[2]

redis.call('ZREM',key1,KEYS[2])
redis.call('DEL',key2)
redis.call('DEL',key3)

